When the ender dragon descends to the source, it does not calculate the descent well and makes a rather funny behavior from the outside.
In this video you can see the bug:
https://youtu.be/dok95EljIQU
MC-167661
The Dragon Ender go bankrupt
Resolved
Invalid
0
(Unassigned)
Unconfirmed
(Unassigned)
ender-dragon, mob
1.15, 1.15.1 Pre-release 1
Retrieved
Please put only one bug report in each ticket. It is very difficult to keep track of bugs when they are not in their own tickets, and it is easier for you to make multiple tickets than for the mods to separate them